1. (

• significant ,
• important ,

) important in effect or meaning; "a significant change in tax laws"; "a significant change in the Constitution"; "a significant contribution"; "significant details"; "statistically significant" ;

2. (

• significant ,
• substantial

) of considerable importance, size, or worth; "won by a substantial margin" ;

3. (

• significant ,

) too closely correlated to be attributed to chance and therefore indicating a systematic relation; "the interaction effect is significant at the .01 level"; "no significant difference was found" ;

4. (

• meaning ,
• pregnant ,
• significant

) rich in significance or implication; "a meaning look"; "a significant silence" ;